/*
 * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */

package com.sun.corba.se.impl.oa.poa;

import java.util.Enumeration;

import org.omg.PortableServer.Servant;
import org.omg.PortableServer.ServantManager;
import org.omg.PortableServer.ForwardRequest;
import org.omg.PortableServer.POAPackage.WrongPolicy;
import org.omg.PortableServer.POAPackage.ObjectNotActive;
import org.omg.PortableServer.POAPackage.ServantNotActive;
import org.omg.PortableServer.POAPackage.ObjectAlreadyActive;
import org.omg.PortableServer.POAPackage.ServantAlreadyActive;
import org.omg.PortableServer.POAPackage.NoServant;

import com.sun.corba.se.impl.orbutil.concurrent.SyncUtil;
import com.sun.corba.se.impl.orbutil.ORBUtility;
import com.sun.corba.se.impl.orbutil.ORBConstants;

/** Implementation of POARequesHandler that provides policy specific
 * operations on the POA.
 */
public class POAPolicyMediatorImpl_R_UDS extends POAPolicyMediatorBase_R {
    private Servant defaultServant;

    POAPolicyMediatorImpl_R_UDS(Policies policies, POAImpl poa) {
        // assert policies.retainServants()
        super(policies, poa);
        defaultServant = null;

        // policies.useDefaultServant()
        if (!policies.useDefaultServant())
            throw poa.invocationWrapper().policyMediatorBadPolicyInFactory();
    }

    protected java.lang.Object internalGetServant(byte[] id, String operation) throws ForwardRequest {
        Servant servant = internalIdToServant(id);
        if (servant == null)
            servant = defaultServant;

        if (servant == null)
            throw poa.invocationWrapper().poaNoDefaultServant();

        return servant;
    }

    public void etherealizeAll() {
        // NO-OP
    }

    public ServantManager getServantManager() throws WrongPolicy {
        throw new WrongPolicy();
    }

    public void setServantManager(ServantManager servantManager) throws WrongPolicy {
        throw new WrongPolicy();
    }

    public Servant getDefaultServant() throws NoServant, WrongPolicy {
        if (defaultServant == null)
            throw new NoServant();
        else
            return defaultServant;
    }

    public void setDefaultServant(Servant servant) throws WrongPolicy {
        defaultServant = servant;
        setDelegate(defaultServant, "DefaultServant".getBytes());
    }

    public Servant idToServant(byte[] id) throws WrongPolicy, ObjectNotActive {
        ActiveObjectMap.Key key = new ActiveObjectMap.Key(id);
        Servant s = internalKeyToServant(key);

        if (s == null)
            if (defaultServant != null)
                s = defaultServant;

        if (s == null)
            throw new ObjectNotActive();

        return s;
    }
}
